A numerical method for predicting O-forming gap in UOE pipe manufacturing

Zou, Ting; Wu, Guanghan; Li, Dayong; Ren, Qiang; Xin, Jiyuan; Peng, Yinghong

doi:10.1016/j.ijmecsci.2015.04.006

Cited by 21 publications

(2 citation statements)

References 28 publications

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“…For the roll forming of tube, Ren et al [1] established the 2D finite element model of single wall tube followed by U-forming, O-forming and expansion forming (the whole UOE forming process), the U-shaped plate is subjected to bending and reverse bending deformation in the O-forming process, and the expansion forming can improve the roundness of the formed tube. Zou et al [2] proposed a numerical method for calculating the springback and predicting the O-forming gap of steel plate after CUO forming (including C-forming, U-forming, and expansion forming). The opening gap at twelve o'clock position of the O-shaped plate was affected by the radius of the lower part of U-mould, and the springback trend is different for different deformation areas.…”

Section: Introductionmentioning

confidence: 99%

The evolution of cross-sectional dimension for double wall brazed tube in the multi-pass roll forming

Liu

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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The manufacturing process of double wall brazed tube (DWBT) consists of the multi-pass roll forming from the flat strip to double wall structure and brazing process. And the poor roundness of cross section for DWBT in the multi-pass roll forming not only affects the forming accuracy and quality, but also restricts the subsequent brazing process of DWBT. Thus, the parameters of Hill’48 yield criterion for the steel strip were firstly determined in this paper, and the reliable 3D finite element model of the multi-pass roll forming of DWBT was established based on ABAQUS/Explicit platform. Then the cross-sectional dimension of DWBT after each roll forming was analyzed. The results show that the multi-pass roll forming of DWBT requires the cooperation of the forming roller, horizontal roller and vertical roller, and the radius of the horizontal roller profile becomes larger with the increasing roll pass. The evolution of cross section is accompanied by the accumulation of equivalent strain, following the forming sequence of two arms on both sides, inner wall, outer wall and sizing process. An expression representing roundness is proposed, and it is concluded that the roundness of the outer tube is better than that of inner tube. Moreover, the cross-sectional distribution of the outer tube is more uniform along the circumferential direction.

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Section: Introductionmentioning

confidence: 99%

The evolution of cross-sectional dimension for double wall brazed tube in the multi-pass roll forming

Liu

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“…A considerable amount of literature has been published on crimping forming processes. ese studies address the stress and strain state of the plate in crimping [1], the effects of technological parameters on the crimping forming quality [2], and the effects of crimping on the pipe quality [3][4][5] by the finite element analysis (FEA) method.…”

Section: Introductionmentioning

confidence: 99%

Precision Forming Technology for Crimping of Large Straight Welded Pipes

Fan

Peng

Wang

et al. 2019

Advances in Materials Science and Engineering

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Crimping plays a pivotal role in the production of large-diameter submerged-arc welded pipes. In the crimping forming process, predicting the springback while considering the real-time variation of material parameters is a major challenge faced by many researchers, which has a direct impact on the quality of the welded pipe. To address this problem, the precision forming technology of crimping was developed. The engineering theory of plastic bending was used to investigate the crimping forming process. Two methods, namely, the slope reverse method and the optimization method, were adopted to identify the material parameters. The results showed that the inverted material parameters can be evaluated in real time based on the analytical model of crimping. The maximum relative error of the identification value is less than 4%. Therefore, the springback and displacement during crimping can be predicted dynamically to control the crimping forming quality. Thus, this project provides an important opportunity to achieve precise forming through crimping.

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